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Security Engineer - Threat Detection

Ireland Locations💼 Full-time🗓 2026-05-20 → 2026-07-31

Core

Design, build, and maintain high-fidelity detections and threat hunts across Stripe's infrastructure, applications, and cloud environments to identify malicious activity before it impacts the business.

Role type

Senior IC Security Engineer (Threat Detection & Hunting)

Builds

Detection-as-code, automation workflows, and tooling for scalable detection and response

Domain

Cybersecurity, Threat Intelligence, Cloud Security (AWS/GCP/Azure)

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

detection logic design, adversary tradecraft analysis, malware analysis, reverse engineering, network/endpoint telemetry analysis, detection query languages (SPL, KQL, EQL, YARA-L, SQL), Python programming, SIEM platform expertise, MITRE ATT&CK mapping

Preferred skills

fintech security experience, purple team operations, big data log analysis (Databricks, PySpark), AI/LLM-assisted development, agentic automation, detection validation tools

Technologies

Splunk, Chronicle, Elastic, CrowdStrike NG-SIEM, Panther, Microsoft Sentinel, AWS, GCP, Azure, Windows, Linux, macOS, Databricks, Trino, PySpark, Claude Code, Cursor, GitHub Copilot, Atomic Red Team, MITRE ATT&CK

Responsibilities

Design and tune high-fidelity detections across modern SIEM platforms covering full attack lifecycle; Develop detection hypotheses by researching TTPs and identifying evidence sources; Conduct hypothesis-driven threat hunts to identify malicious activity and validate security controls; Perform malware analysis and reverse engineering to extract indicators; Build network-based and endpoint-based detections across multiple OS platforms; Partner with Threat Intelligence to operationalize intel reports into detections; Collaborate with IR, SOC, and offensive security teams to validate and refine detections; Build data pipelines and automation enabling detection-as-code practices; Map detection coverage to MITRE ATT&CK and prioritize gaps; Lead projects and mentor teammates

Seniority

Senior, hands-on IC with mentorship responsibilities

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